Home / 107,531.15-148,351.50-69,287.81

Finding the Fourth Proportional to 107,531.15, 148,351.50 and 69,287.81

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Solution

The fourth proportional to 107,531.15, 148,351.50 and 69,287.81 is: 95,590.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,531.15 : 148,351.50 = 69,287.81 : x
  2. Step 2: Convert to fraction form
    107,531.15/148,351.50 = 69,287.81/x
  3. Step 3: Cross multiply
    107,531.15x = 148,351.50 × 69,287.81
  4. Step 4: Simplify right side
    107,531.15x = 10,278,949,803.46
  5. Step 5: Solve for x
    x = 10,278,949,803.46/107,531.15
  6. Step 6: Final answer
    x = 95,590.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.